Our biggest legal problems will arise if it's treated like a currency, but if it's not, then we may be able to do this with complete anonymity. We're looking into that today as I type this.
Even without treating BTC like a currency, the U.S. could consider BTC exchanges like prediction markets, already illegal here. You should check with your legal counsel about that.
That's why we will probably stay away from futures, options and any stock or commodity trade platform. It will likely be simple buys and sells only. Otherwise, I fear it will turn into a gambling casino no different than wall street. If it becomes contracts for future performance we get into loaning credit in a sense, and I'm not comfortable with any of that. It can easily become a currency regulated issue if we do any of that, I think.